Limit Custom Types on a folder

[palba]

Hi.

First of all, english is not my first language, so sorry for my mistakes

I've developed several custom types. When I click on "create content", all of them are showed in the list of type of content.

Is there any form of limit what types are shown in that list in a folder?

I.E., if I have a custom type Book, and a folder Library, How can I make that the only possible type in the folder Library is Book?

Thnx in advance

[linhnh]

Hi.

First of all, english is not my first language, so sorry for my mistakes

I've developed several custom types. When I click on "create content", all of them are showed in the list of type of content.

Is there any form of limit what types are shown in that list in a folder?

I.E., if I have a custom type Book, and a folder Library, How can I make that the only possible type in the folder Library is Book?

Thnx in advance

I try to do it. by modify BaseContentWizard.java 
at function List ObjectTypes
it can run . but any type not in this list type can't display

[palba]

I manage to do it by modify the class CreateContentWizard…